11938165 has 8 divisors (see below), whose sum is σ = 15168600. Its totient is φ = 8988672.

The previous prime is 11938163. The next prime is 11938183. The reversal of 11938165 is 56183911.

It can be written as a sum of positive squares in 4 ways, for example, as 1787569 + 10150596 = 1337^2 + 3186^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11938165 - 2¹ = 11938163 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11938165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11938163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70140 + ... + 70309.

It is an arithmetic number, because the mean of its divisors is an integer number (1896075).

Almost surely, 2^11938165 is an apocalyptic number.

It is an amenable number.

11938165 is a deficient number, since it is larger than the sum of its proper divisors (3230435).

11938165 is a wasteful number, since it uses less digits than its factorization.

11938165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140471.

The product of its digits is 6480, while the sum is 34.

The square root of 11938165 is about 3455.1649743536. The cubic root of 11938165 is about 228.5489299842.

The spelling of 11938165 in words is "eleven million, nine hundred thirty-eight thousand, one hundred sixty-five".